$\"\"$

The equation is $\"\"$ .

$\"\"$ (Divide each side by t)

$\"\"$ (Cancel common terms) $\"\"$

$\"\"$ (Substrat $\"\"$ each side)

$\"\"$ (Additive inverse property: $\"\"$ )

$\"\"$ (Simplify)

$\"\"$

Verify:

To check the solution, substitute $\"\"$ in original equation.

$\"\"$

$\"\"$ (Cancel common terms)

$\"\"$ (Additive inverse property: r – r = 0)

Compare the values, the equation is true.

$\"\"$

The value of $\"\"$ .